It's hard to care about any of these developments in the school arc. He really should find a way to get an honorary degree or something that lets him skip wasting 5 years here. (And, more importantly, spare us chapters about this junk.)
As far as the antagonist here, the whole thing leaves a bad taste in my mouth. It feels like the mc is doing some sort of cross between seal-clubbing in video games and beating up on someone mentally disabled.